http://en.wikipedia.org/wiki/Constantine_Palaiologos_(half-brother_of_Michael_VIII)

Constantine Palaiologos (half-brother of Michael VIII)

Constantine Palaiologos (or Palaeologus) (Greek: Κωνσταντίνος Παλαιολόγος) (died 1271) was a son of Andronikos Palaiologos, Grand Domestic of the Empire of Nicaea and an unknown second wife.[1] As such, he was a younger half-brother of the Byzantine Emperor Michael VIII Palaiologos. Life and career

The life of Constantine is unknown until 1259, when he was appointed Caesar by his elder half-brother, Michael VIII. The following year, he was also created a sebastokrator. He commanded the Byzantine forces on an unsuccessful campaign against the Latin Principality of Achaea, where his army was routed at the Battle of Prinitza. However, Constantine had already left the region by the time of the major Byzantine defeat at the Battle of Makryplagi in 1263/1264.[2][3] Sometime after returning from the campaign against the Principality of Achaea, Constantine became a monk under the name Kallinikos.[4] He died in 1271. [edit]Marriage and family

Constantine was married c. 1259/60 to a woman named Eirene Komnene Laskarina Branaina,[5] by whom he seems to have had five children"[6]

1. Michael Komnenos Branas Palaiologos[7]
2. Andronikos Branas Doukas Angelos Palaiologos[8]
3. Maria Komnene Branaina Laskarina Doukaina Tornikina Palaiologina.[9] Married Isaac Komnenos Doukas Tornikios.[10]
4. Theodora. Married John Komnenos Doukas Angelos Synadenos and had three children. Later became a nun under the name Theodoule.
5. Daughter (name unknown). Married Smilets of Bulgaria.[11]

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-http://fmg.ac/Projects/MedLands/BYZANTIUM%2012611453.htm#Konstantin...

5. KONSTANTINOS Angelos Komnenos Doukas Palaiologos (-1271). Georgios Phrantzes names "Michael Comnenus, Constantinus Palaeologus et Iohannes" as the three sons of "Androniko Palaeologo…magnum domesticum"[65]. Georgios Akropolites records that Emperor Mikhael VIII invested "alterum fratrem Constantinum, ex alia ortum matre" as "Cæsaris" at Paphlagonia[66]. Ephræmius records that Mikhael Palaiologos invested "alium denique fratrem Constantinum" with "cæsarea dignitate"[67]. Appointed cæsar 1259. Sébastokrator 1260. General in the Peloponnesos 1262/64. He became a monk as KALLINIKOS.

m ( [1259/60] ) EIRENE Komnene Laskarina Branaina, daughter of --- Branas [strategos] & his wife --- Kantakouzene (-[1271]). Pachymeres records the marriage of "Branæ filiam" and "alterum…fratrum Constantinum…cæsarem" (referring to the future Emperor Mikhael VIII)[68]. An undated seal records “Irène Comnène cæsarissa femme du césar du nom d’Ange”[69]. She became a nun as MARIA.

 Konstantinos Palaiologos & his wife had five children: